Curtain-roller.



PATBNTED SEPT. 5, 1905.

G. J. RECORD. CURTAIN ROLLER.

APPLICATION FILED APB.6,1905.

UNITED STATES GEORGE J. REUORD, ()F ONNEAUT, ()lllO.

CURTAIN-ROLLER.-

Specification of Letters Patent.

Patented Sept. 5, 1905.

Application filed 11 6,19O6. Serial No. 254,103.

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Be it known that I, (llcoaen J. Rnooao, a citizen of the United States,residing at Conneaut, in the county of Ashtabula and State of Ohio, haveinvented certain new and useful improvements in Curtain-Rollers; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to curtain-rollers and rollers for similar useshaving longitudinal grooves in which the fabric of the curtain or otherflexible material may be detachably fastened, and is an improvement onthe subjectmatter of my Letters Patent No. 783,759, dated February 28,1905.

The said invention has for its chief object to strengthen the wall ofthe said groove, especially guarding against injury by torsional strain;and to this end it consists in the construction and combination of partshereinafter particularly set forth and claimed.

In the accompanying drawings, Figure 1 represents a longitudinal sectionof a springroller embodying my invention. Fig. 2 represents an enlargedtransverse section of the same on the line 2 2 of Fig. 1. Fig. 3represents an enlarged end view looking toward the right in Fig. l, andFig. 4 represents a detail view of the cap.

A designates the body of the roller, B the longitudinal dovetailedgroove, and C the undulating fastening-rod applied in said groove tohold the material of the curtain, as set forth in said patent. Forbracing the roller-body and groove-wall and adjusting the length of theroller to the Width of a window I prefer to employ a tubular groovedrcinforcing lining and adjusting piece I), as in my application SerialNo. 252,00T,which more fully describes it. The spring E in one end ofthe said roller, the prismatic-ended journal F, to which the outer endof said spring is attached, the recessed hub G, integral with saidjournal, the pawls H, arranged and adapted to engage the recess of saidhub when opposite the same and not held out of engagement by centrifugalforce, the partition I, which affords a bearing for the cylindrical partof said journal, the wooden plug J, fast within the said roll and havingthe inner end of the said spring attached thereto, the plug J in theother end of the said roller, and the cylindrical journal K, fixed inand projecting from the center of the latter plug, are all well knownand need no further explanation. The said dovetailed groove B is formedby depressing within the roll two bent flanges L and M, each integralwith one of the edges of the longitudinal seam, and subsequently drawingthe parts Z and m at the neck of the groove more nearly together for thepurpose of narrowing the neck. The horizontal parts L and M of the saidflanges overlap each other across the full width of the bottom of thegroove, making said groove double. A longitudinal cap 0, shaped to [itthe exterior of the wall of said groove, clasps the neck thercof and isin contact with its sides and the said bottom, being held securely inthis position by fastening-pins or rivets P, which pass throughoverlapping parts or layers L M and into wooden plugs J J", or they maybe headed or otherwise secured without the aid of the said plug. Thenumber of said fastening-pins and their location along the groove may bevaried, as found convenient. The said cap is of course between thegroove-wall and the reinforcing-piece I). No solder is needed. The saidcap and pins securely brace the wall of thegroovc, hold the overlappingparts L M together, and guard against any injury from torsion or otherstrain. The edge of the upper overlapping part L bears outwardly againstthe wall of the other flange M just above the part hi, and this preventsthe sides of the groove from being pressed in when the cap is applied.In all subsequent use of the roll these overlapping parts effectuallybrace the sides of the groove-wall against lateral strain and twist,cooperating with the cap, the pins, and the rein fo rcing-piece instrengthening the groove-wall and scam. After the cap has been fitted onthe groove-wall, as stated, and the overlapping and bracing bottom partsL and H have been fastened to the corresponding portion of said cap bythe said pins, as aforesaid, any movement of any of the parts formingthe groove and scam is impossible, even without the addition of thetubular reinforcing and adjusting piece; but the latter obviously willadd another element of strength.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

l. A roller provided with a longitudinal dovetailed groove formed byflanges which overlap at the bottom, the horizontal lower part of eachextending the full width of the groove, in combination with a deviceagainst which the lower flange bears to assist in bracing the wall ofsaid groove substantially as and for the purpose set forth.

2. A roller having a longitudinal groove formed by overlapping partswhich are fastened together at the bottom of said groove by devicespassing through the said overlapping parts, the latter extendingentirely across the bottom of the groove, in combination with a partagainst which the lower flange bears, the upper flange bearing againstthe inner face of the opposite wall of the groove and both flangesthereby combining to brace the wall of said groove substantially as setforth.

3. A roller having a longitudinal groove formed by parts overlapping toform a bottom of two layers and provided with an external cap fittingthe wall of said groove to hold said parts together, the partconstituting the upper layer of the bottom being in contact with theinner face of the opposite wall of the groove and the part constitutingthe lower layer of the bottom being similarly in contact with theopposite side wall of the cap,

whereby the said layers and the said cap combine to brace the sides ofthe groove-wall and maintain its shape substantially as set forth.

4. A roller having a longitudinal groove formed by two parallel flangeshaving bottom parts which overlap the full width of the groove to braceeach other and provided with an external cap fitting against thesidewalls of the said flanges and against the bottom and edge of the lowerflange to protect the groovewall and hold the said overlapping parts inplace substantially as set forth.

of the said cap, in combination with a lining or reinforcing piece Dwhich fits the interior of the roll and grips on both sides the neck ofthe groove to cooperate in bracing the groove-wall substantially as setforth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

GEORGE J. RECORD.

Witnesses:

ALLEN M. Cox, H. G. KINGDOM.

